xref: /dragonfly/sys/dev/misc/syscons/scvidctl.c (revision 984263bc)
1 /*-
2  * Copyright (c) 1998 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer as
10  *    the first lines of this file unmodified.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD: src/sys/dev/syscons/scvidctl.c,v 1.19.2.2 2000/05/05 09:16:08 nyan Exp $
27  */
28 
29 #include "opt_syscons.h"
30 
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/conf.h>
34 #include <sys/signalvar.h>
35 #include <sys/tty.h>
36 #include <sys/kernel.h>
37 
38 #include <machine/console.h>
39 
40 #include <dev/fb/fbreg.h>
41 #include <dev/syscons/syscons.h>
42 
43 /* for compatibility with previous versions */
44 /* 3.0-RELEASE used the following structure */
45 typedef struct old_video_adapter {
46     int			va_index;
47     int			va_type;
48     int			va_flags;
49 /* flag bits are the same as the -CURRENT
50 #define V_ADP_COLOR	(1<<0)
51 #define V_ADP_MODECHANGE (1<<1)
52 #define V_ADP_STATESAVE	(1<<2)
53 #define V_ADP_STATELOAD	(1<<3)
54 #define V_ADP_FONT	(1<<4)
55 #define V_ADP_PALETTE	(1<<5)
56 #define V_ADP_BORDER	(1<<6)
57 #define V_ADP_VESA	(1<<7)
58 */
59     int			va_crtc_addr;
60     u_int		va_window;	/* virtual address */
61     size_t		va_window_size;
62     size_t		va_window_gran;
63     u_int		va_buffer;	/* virtual address */
64     size_t		va_buffer_size;
65     int			va_initial_mode;
66     int			va_initial_bios_mode;
67     int			va_mode;
68 } old_video_adapter_t;
69 
70 #define OLD_CONS_ADPINFO _IOWR('c', 101, old_video_adapter_t)
71 
72 /* 3.1-RELEASE used the following structure */
73 typedef struct old_video_adapter_info {
74     int			va_index;
75     int			va_type;
76     char		va_name[16];
77     int			va_unit;
78     int			va_flags;
79     int			va_io_base;
80     int			va_io_size;
81     int			va_crtc_addr;
82     int			va_mem_base;
83     int			va_mem_size;
84     u_int		va_window;	/* virtual address */
85     size_t		va_window_size;
86     size_t		va_window_gran;
87     u_int		va_buffer;;
88     size_t		va_buffer_size;
89     int			va_initial_mode;
90     int			va_initial_bios_mode;
91     int			va_mode;
92     int			va_line_width;
93 } old_video_adapter_info_t;
94 
95 #define OLD_CONS_ADPINFO2 _IOWR('c', 101, old_video_adapter_info_t)
96 
97 /* 3.0-RELEASE and 3.1-RELEASE used the following structure */
98 typedef struct old_video_info {
99     int			vi_mode;
100     int			vi_flags;
101 /* flag bits are the same as the -CURRENT
102 #define V_INFO_COLOR	(1<<0)
103 #define V_INFO_GRAPHICS	(1<<1)
104 #define V_INFO_LINEAR	(1<<2)
105 #define V_INFO_VESA	(1<<3)
106 */
107     int			vi_width;
108     int			vi_height;
109     int			vi_cwidth;
110     int			vi_cheight;
111     int			vi_depth;
112     int			vi_planes;
113     u_int		vi_window;	/* physical address */
114     size_t		vi_window_size;
115     size_t		vi_window_gran;
116     u_int		vi_buffer;	/* physical address */
117     size_t		vi_buffer_size;
118 } old_video_info_t;
119 
120 #define OLD_CONS_MODEINFO _IOWR('c', 102, old_video_info_t)
121 #define OLD_CONS_FINDMODE _IOWR('c', 103, old_video_info_t)
122 
123 int
124 sc_set_text_mode(scr_stat *scp, struct tty *tp, int mode, int xsize, int ysize,
125 		 int fontsize)
126 {
127     video_info_t info;
128     u_char *font;
129     int prev_ysize;
130     int error;
131     int s;
132 
133     if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, mode, &info))
134 	return ENODEV;
135 
136     /* adjust argument values */
137     if (fontsize <= 0)
138 	fontsize = info.vi_cheight;
139     if (fontsize < 14) {
140 	fontsize = 8;
141 #ifndef SC_NO_FONT_LOADING
142 	if (!(scp->sc->fonts_loaded & FONT_8))
143 	    return EINVAL;
144 	font = scp->sc->font_8;
145 #else
146 	font = NULL;
147 #endif
148     } else if (fontsize >= 16) {
149 	fontsize = 16;
150 #ifndef SC_NO_FONT_LOADING
151 	if (!(scp->sc->fonts_loaded & FONT_16))
152 	    return EINVAL;
153 	font = scp->sc->font_16;
154 #else
155 	font = NULL;
156 #endif
157     } else {
158 	fontsize = 14;
159 #ifndef SC_NO_FONT_LOADING
160 	if (!(scp->sc->fonts_loaded & FONT_14))
161 	    return EINVAL;
162 	font = scp->sc->font_14;
163 #else
164 	font = NULL;
165 #endif
166     }
167     if ((xsize <= 0) || (xsize > info.vi_width))
168 	xsize = info.vi_width;
169     if ((ysize <= 0) || (ysize > info.vi_height))
170 	ysize = info.vi_height;
171 
172     /* stop screen saver, etc */
173     s = spltty();
174     if ((error = sc_clean_up(scp))) {
175 	splx(s);
176 	return error;
177     }
178 
179     if (sc_render_match(scp, scp->sc->adp->va_name, 0) == NULL) {
180 	splx(s);
181 	return ENODEV;
182     }
183 
184     /* set up scp */
185 #ifndef SC_NO_HISTORY
186     if (scp->history != NULL)
187 	sc_hist_save(scp);
188 #endif
189     prev_ysize = scp->ysize;
190     /*
191      * This is a kludge to fend off scrn_update() while we
192      * muck around with scp. XXX
193      */
194     scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
195     scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE | MOUSE_VISIBLE);
196     scp->mode = mode;
197     scp->xsize = xsize;
198     scp->ysize = ysize;
199     scp->xoff = 0;
200     scp->yoff = 0;
201     scp->xpixel = scp->xsize*8;
202     scp->ypixel = scp->ysize*fontsize;
203     scp->font = font;
204     scp->font_size = fontsize;
205 
206     /* allocate buffers */
207     sc_alloc_scr_buffer(scp, TRUE, TRUE);
208     sc_init_emulator(scp, NULL);
209 #ifndef SC_NO_CUTPASTE
210     sc_alloc_cut_buffer(scp, FALSE);
211 #endif
212 #ifndef SC_NO_HISTORY
213     sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE);
214 #endif
215     splx(s);
216 
217     if (scp == scp->sc->cur_scp)
218 	set_mode(scp);
219     scp->status &= ~UNKNOWN_MODE;
220 
221     if (tp == NULL)
222 	return 0;
223     DPRINTF(5, ("ws_*size (%d,%d), size (%d,%d)\n",
224 	tp->t_winsize.ws_col, tp->t_winsize.ws_row, scp->xsize, scp->ysize));
225     if (tp->t_winsize.ws_col != scp->xsize
226 	|| tp->t_winsize.ws_row != scp->ysize) {
227 	tp->t_winsize.ws_col = scp->xsize;
228 	tp->t_winsize.ws_row = scp->ysize;
229 	pgsignal(tp->t_pgrp, SIGWINCH, 1);
230     }
231 
232     return 0;
233 }
234 
235 int
236 sc_set_graphics_mode(scr_stat *scp, struct tty *tp, int mode)
237 {
238 #ifdef SC_NO_MODE_CHANGE
239     return ENODEV;
240 #else
241     video_info_t info;
242     int error;
243     int s;
244 
245     if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, mode, &info))
246 	return ENODEV;
247 
248     /* stop screen saver, etc */
249     s = spltty();
250     if ((error = sc_clean_up(scp))) {
251 	splx(s);
252 	return error;
253     }
254 
255     if (sc_render_match(scp, scp->sc->adp->va_name, GRAPHICS_MODE) == NULL) {
256 	splx(s);
257 	return ENODEV;
258     }
259 
260     /* set up scp */
261     scp->status |= (UNKNOWN_MODE | GRAPHICS_MODE | MOUSE_HIDDEN);
262     scp->status &= ~(PIXEL_MODE | MOUSE_VISIBLE);
263     scp->mode = mode;
264     /*
265      * Don't change xsize and ysize; preserve the previous vty
266      * and history buffers.
267      */
268     scp->xoff = 0;
269     scp->yoff = 0;
270     scp->xpixel = info.vi_width;
271     scp->ypixel = info.vi_height;
272     scp->font = NULL;
273     scp->font_size = 0;
274 #ifndef SC_NO_SYSMOUSE
275     /* move the mouse cursor at the center of the screen */
276     sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2);
277 #endif
278     sc_init_emulator(scp, NULL);
279     splx(s);
280 
281     if (scp == scp->sc->cur_scp)
282 	set_mode(scp);
283     /* clear_graphics();*/
284     scp->status &= ~UNKNOWN_MODE;
285 
286     if (tp == NULL)
287 	return 0;
288     if (tp->t_winsize.ws_xpixel != scp->xpixel
289 	|| tp->t_winsize.ws_ypixel != scp->ypixel) {
290 	tp->t_winsize.ws_xpixel = scp->xpixel;
291 	tp->t_winsize.ws_ypixel = scp->ypixel;
292 	pgsignal(tp->t_pgrp, SIGWINCH, 1);
293     }
294 
295     return 0;
296 #endif /* SC_NO_MODE_CHANGE */
297 }
298 
299 int
300 sc_set_pixel_mode(scr_stat *scp, struct tty *tp, int xsize, int ysize,
301 		  int fontsize)
302 {
303 #ifndef SC_PIXEL_MODE
304     return ENODEV;
305 #else
306     video_info_t info;
307     u_char *font;
308     int prev_ysize;
309     int error;
310     int s;
311 
312     if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, scp->mode, &info))
313 	return ENODEV;		/* this shouldn't happen */
314 
315     /* adjust argument values */
316     if (fontsize <= 0)
317 	fontsize = info.vi_cheight;
318     if (fontsize < 14) {
319 	fontsize = 8;
320 #ifndef SC_NO_FONT_LOADING
321 	if (!(scp->sc->fonts_loaded & FONT_8))
322 	    return EINVAL;
323 	font = scp->sc->font_8;
324 #else
325 	font = NULL;
326 #endif
327     } else if (fontsize >= 16) {
328 	fontsize = 16;
329 #ifndef SC_NO_FONT_LOADING
330 	if (!(scp->sc->fonts_loaded & FONT_16))
331 	    return EINVAL;
332 	font = scp->sc->font_16;
333 #else
334 	font = NULL;
335 #endif
336     } else {
337 	fontsize = 14;
338 #ifndef SC_NO_FONT_LOADING
339 	if (!(scp->sc->fonts_loaded & FONT_14))
340 	    return EINVAL;
341 	font = scp->sc->font_14;
342 #else
343 	font = NULL;
344 #endif
345     }
346     if (xsize <= 0)
347 	xsize = info.vi_width/8;
348     if (ysize <= 0)
349 	ysize = info.vi_height/fontsize;
350 
351     if ((info.vi_width < xsize*8) || (info.vi_height < ysize*fontsize))
352 	return EINVAL;
353 
354     /* only 16 color, 4 plane modes are supported XXX */
355     if ((info.vi_depth != 4) || (info.vi_planes != 4))
356 	return ENODEV;
357 
358     /*
359      * set_pixel_mode() currently does not support video modes whose
360      * memory size is larger than 64K. Because such modes require
361      * bank switching to access the entire screen. XXX
362      */
363     if (info.vi_width*info.vi_height/8 > info.vi_window_size)
364 	return ENODEV;
365 
366     /* stop screen saver, etc */
367     s = spltty();
368     if ((error = sc_clean_up(scp))) {
369 	splx(s);
370 	return error;
371     }
372 
373     if (sc_render_match(scp, scp->sc->adp->va_name, PIXEL_MODE) == NULL) {
374 	splx(s);
375 	return ENODEV;
376     }
377 
378 #if 0
379     if (scp->tsw)
380 	(*scp->tsw->te_term)(scp, scp->ts);
381     scp->tsw = NULL;
382     scp->ts = NULL;
383 #endif
384 
385     /* set up scp */
386 #ifndef SC_NO_HISTORY
387     if (scp->history != NULL)
388 	sc_hist_save(scp);
389 #endif
390     prev_ysize = scp->ysize;
391     scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
392     scp->status &= ~(GRAPHICS_MODE | MOUSE_VISIBLE);
393     scp->xsize = xsize;
394     scp->ysize = ysize;
395     scp->xoff = (scp->xpixel/8 - xsize)/2;
396     scp->yoff = (scp->ypixel/fontsize - ysize)/2;
397     scp->font = font;
398     scp->font_size = fontsize;
399 
400     /* allocate buffers */
401     sc_alloc_scr_buffer(scp, TRUE, TRUE);
402     sc_init_emulator(scp, NULL);
403 #ifndef SC_NO_CUTPASTE
404     sc_alloc_cut_buffer(scp, FALSE);
405 #endif
406 #ifndef SC_NO_HISTORY
407     sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE);
408 #endif
409     splx(s);
410 
411     if (scp == scp->sc->cur_scp) {
412 	sc_set_border(scp, scp->border);
413 	sc_set_cursor_image(scp);
414     }
415 
416     scp->status &= ~UNKNOWN_MODE;
417 
418     if (tp == NULL)
419 	return 0;
420     if (tp->t_winsize.ws_col != scp->xsize
421 	|| tp->t_winsize.ws_row != scp->ysize) {
422 	tp->t_winsize.ws_col = scp->xsize;
423 	tp->t_winsize.ws_row = scp->ysize;
424 	pgsignal(tp->t_pgrp, SIGWINCH, 1);
425     }
426 
427     return 0;
428 #endif /* SC_PIXEL_MODE */
429 }
430 
431 #define fb_ioctl(a, c, d)		\
432 	(((a) == NULL) ? ENODEV : 	\
433 			 (*vidsw[(a)->va_index]->ioctl)((a), (c), (caddr_t)(d)))
434 
435 int
436 sc_vid_ioctl(struct tty *tp, u_long cmd, caddr_t data, int flag, struct proc *p)
437 {
438     scr_stat *scp;
439     video_adapter_t *adp;
440     video_info_t info;
441     video_adapter_info_t adp_info;
442     int error;
443     int s;
444 
445     scp = SC_STAT(tp->t_dev);
446     if (scp == NULL)		/* tp == SC_MOUSE */
447 	return ENOIOCTL;
448     adp = scp->sc->adp;
449     if (adp == NULL)		/* shouldn't happen??? */
450 	return ENODEV;
451 
452     switch (cmd) {
453 
454     case CONS_CURRENTADP:	/* get current adapter index */
455     case FBIO_ADAPTER:
456 	return fb_ioctl(adp, FBIO_ADAPTER, data);
457 
458     case CONS_CURRENT:  	/* get current adapter type */
459     case FBIO_ADPTYPE:
460 	return fb_ioctl(adp, FBIO_ADPTYPE, data);
461 
462     case OLD_CONS_ADPINFO:	/* adapter information (old interface) */
463 	if (((old_video_adapter_t *)data)->va_index >= 0) {
464 	    adp = vid_get_adapter(((old_video_adapter_t *)data)->va_index);
465 	    if (adp == NULL)
466 		return ENODEV;
467 	}
468 	((old_video_adapter_t *)data)->va_index = adp->va_index;
469 	((old_video_adapter_t *)data)->va_type = adp->va_type;
470 	((old_video_adapter_t *)data)->va_flags = adp->va_flags;
471 	((old_video_adapter_t *)data)->va_crtc_addr = adp->va_crtc_addr;
472 	((old_video_adapter_t *)data)->va_window = adp->va_window;
473 	((old_video_adapter_t *)data)->va_window_size = adp->va_window_size;
474 	((old_video_adapter_t *)data)->va_window_gran = adp->va_window_gran;
475 	((old_video_adapter_t *)data)->va_buffer = adp->va_buffer;
476 	((old_video_adapter_t *)data)->va_buffer_size = adp->va_buffer_size;
477 	((old_video_adapter_t *)data)->va_mode = adp->va_mode;
478 	((old_video_adapter_t *)data)->va_initial_mode = adp->va_initial_mode;
479 	((old_video_adapter_t *)data)->va_initial_bios_mode
480 	    = adp->va_initial_bios_mode;
481 	return 0;
482 
483     case OLD_CONS_ADPINFO2:	/* adapter information (yet another old I/F) */
484 	adp_info.va_index = ((old_video_adapter_info_t *)data)->va_index;
485 	if (adp_info.va_index >= 0) {
486 	    adp = vid_get_adapter(adp_info.va_index);
487 	    if (adp == NULL)
488 		return ENODEV;
489 	}
490 	error = fb_ioctl(adp, FBIO_ADPINFO, &adp_info);
491 	if (error == 0)
492 	    bcopy(&adp_info, data, sizeof(old_video_adapter_info_t));
493 	return error;
494 
495     case CONS_ADPINFO:		/* adapter information */
496     case FBIO_ADPINFO:
497 	if (((video_adapter_info_t *)data)->va_index >= 0) {
498 	    adp = vid_get_adapter(((video_adapter_info_t *)data)->va_index);
499 	    if (adp == NULL)
500 		return ENODEV;
501 	}
502 	return fb_ioctl(adp, FBIO_ADPINFO, data);
503 
504     case CONS_GET:      	/* get current video mode */
505     case FBIO_GETMODE:
506 	*(int *)data = scp->mode;
507 	return 0;
508 
509 #ifndef SC_NO_MODE_CHANGE
510     case FBIO_SETMODE:		/* set video mode */
511 	if (!(adp->va_flags & V_ADP_MODECHANGE))
512  	    return ENODEV;
513 	info.vi_mode = *(int *)data;
514 	error = fb_ioctl(adp, FBIO_MODEINFO, &info);
515 	if (error)
516 	    return error;
517 	if (info.vi_flags & V_INFO_GRAPHICS)
518 	    return sc_set_graphics_mode(scp, tp, *(int *)data);
519 	else
520 	    return sc_set_text_mode(scp, tp, *(int *)data, 0, 0, 0);
521 #endif /* SC_NO_MODE_CHANGE */
522 
523     case OLD_CONS_MODEINFO:	/* get mode information (old infterface) */
524 	info.vi_mode = ((old_video_info_t *)data)->vi_mode;
525 	error = fb_ioctl(adp, FBIO_MODEINFO, &info);
526 	if (error == 0)
527 	    bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
528 	return error;
529 
530     case CONS_MODEINFO:		/* get mode information */
531     case FBIO_MODEINFO:
532 	return fb_ioctl(adp, FBIO_MODEINFO, data);
533 
534     case OLD_CONS_FINDMODE:	/* find a matching video mode (old interface) */
535 	bzero(&info, sizeof(info));
536 	bcopy((old_video_info_t *)data, &info, sizeof(old_video_info_t));
537 	error = fb_ioctl(adp, FBIO_FINDMODE, &info);
538 	if (error == 0)
539 	    bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
540 	return error;
541 
542     case CONS_FINDMODE:		/* find a matching video mode */
543     case FBIO_FINDMODE:
544 	return fb_ioctl(adp, FBIO_FINDMODE, data);
545 
546     case CONS_SETWINORG:	/* set frame buffer window origin */
547     case FBIO_SETWINORG:
548 	if (scp != scp->sc->cur_scp)
549 	    return ENODEV;	/* XXX */
550 	return fb_ioctl(adp, FBIO_SETWINORG, data);
551 
552     case FBIO_GETWINORG:	/* get frame buffer window origin */
553 	if (scp != scp->sc->cur_scp)
554 	    return ENODEV;	/* XXX */
555 	return fb_ioctl(adp, FBIO_GETWINORG, data);
556 
557     case FBIO_GETDISPSTART:
558     case FBIO_SETDISPSTART:
559     case FBIO_GETLINEWIDTH:
560     case FBIO_SETLINEWIDTH:
561 	if (scp != scp->sc->cur_scp)
562 	    return ENODEV;	/* XXX */
563 	return fb_ioctl(adp, cmd, data);
564 
565     case FBIO_GETPALETTE:
566     case FBIO_SETPALETTE:
567     case FBIOPUTCMAP:
568     case FBIOGETCMAP:
569     case FBIOGTYPE:
570     case FBIOGATTR:
571     case FBIOSVIDEO:
572     case FBIOGVIDEO:
573     case FBIOSCURSOR:
574     case FBIOGCURSOR:
575     case FBIOSCURPOS:
576     case FBIOGCURPOS:
577     case FBIOGCURMAX:
578 	if (scp != scp->sc->cur_scp)
579 	    return ENODEV;	/* XXX */
580 	return fb_ioctl(adp, cmd, data);
581 
582 #ifndef SC_NO_MODE_CHANGE
583     /* generic text modes */
584     case SW_TEXT_80x25:	case SW_TEXT_80x30:
585     case SW_TEXT_80x43: case SW_TEXT_80x50:
586     case SW_TEXT_80x60:
587 	/* FALL THROUGH */
588 
589     /* VGA TEXT MODES */
590     case SW_VGA_C40x25:
591     case SW_VGA_C80x25: case SW_VGA_M80x25:
592     case SW_VGA_C80x30: case SW_VGA_M80x30:
593     case SW_VGA_C80x50: case SW_VGA_M80x50:
594     case SW_VGA_C80x60: case SW_VGA_M80x60:
595     case SW_VGA_C90x25: case SW_VGA_M90x25:
596     case SW_VGA_C90x30: case SW_VGA_M90x30:
597     case SW_VGA_C90x43: case SW_VGA_M90x43:
598     case SW_VGA_C90x50: case SW_VGA_M90x50:
599     case SW_VGA_C90x60: case SW_VGA_M90x60:
600     case SW_B40x25:     case SW_C40x25:
601     case SW_B80x25:     case SW_C80x25:
602     case SW_ENH_B40x25: case SW_ENH_C40x25:
603     case SW_ENH_B80x25: case SW_ENH_C80x25:
604     case SW_ENH_B80x43: case SW_ENH_C80x43:
605     case SW_EGAMONO80x25:
606 
607 #ifdef PC98
608     /* PC98 TEXT MODES */
609     case SW_PC98_80x25:
610     case SW_PC98_80x30:
611 #endif
612 	if (!(adp->va_flags & V_ADP_MODECHANGE))
613  	    return ENODEV;
614 	return sc_set_text_mode(scp, tp, cmd & 0xff, 0, 0, 0);
615 
616     /* GRAPHICS MODES */
617     case SW_BG320:     case SW_BG640:
618     case SW_CG320:     case SW_CG320_D:   case SW_CG640_E:
619     case SW_CG640x350: case SW_ENH_CG640:
620     case SW_BG640x480: case SW_CG640x480: case SW_VGA_CG320:
621     case SW_VGA_MODEX:
622 #ifdef PC98
623     /* PC98 GRAPHICS MODES */
624     case SW_PC98_EGC640x400:	case SW_PC98_PEGC640x400:
625     case SW_PC98_PEGC640x480:
626 #endif
627 	if (!(adp->va_flags & V_ADP_MODECHANGE))
628 	    return ENODEV;
629 	return sc_set_graphics_mode(scp, tp, cmd & 0xff);
630 #endif /* SC_NO_MODE_CHANGE */
631 
632     case KDSETMODE:     	/* set current mode of this (virtual) console */
633 	switch (*(int *)data) {
634 	case KD_TEXT:   	/* switch to TEXT (known) mode */
635 	    /*
636 	     * If scp->mode is of graphics modes, we don't know which
637 	     * text mode to switch back to...
638 	     */
639 	    if (scp->status & GRAPHICS_MODE)
640 		return EINVAL;
641 	    /* restore fonts & palette ! */
642 #if 0
643 #ifndef SC_NO_FONT_LOADING
644 	    if (ISFONTAVAIL(adp->va_flags)
645 		&& !(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
646 		/*
647 		 * FONT KLUDGE
648 		 * Don't load fonts for now... XXX
649 		 */
650 		if (scp->sc->fonts_loaded & FONT_8)
651 		    sc_load_font(scp, 0, 8, scp->sc->font_8, 0, 256);
652 		if (scp->sc->fonts_loaded & FONT_14)
653 		    sc_load_font(scp, 0, 14, scp->sc->font_14, 0, 256);
654 		if (scp->sc->fonts_loaded & FONT_16)
655 		    sc_load_font(scp, 0, 16, scp->sc->font_16, 0, 256);
656 	    }
657 #endif /* SC_NO_FONT_LOADING */
658 #endif
659 
660 #ifndef SC_NO_PALETTE_LOADING
661 	    load_palette(adp, scp->sc->palette);
662 #endif
663 
664 #ifndef PC98
665 	    /* move hardware cursor out of the way */
666 	    (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1);
667 #endif
668 
669 	    /* FALL THROUGH */
670 
671 	case KD_TEXT1:  	/* switch to TEXT (known) mode */
672 	    /*
673 	     * If scp->mode is of graphics modes, we don't know which
674 	     * text/pixel mode to switch back to...
675 	     */
676 	    if (scp->status & GRAPHICS_MODE)
677 		return EINVAL;
678 	    s = spltty();
679 	    if ((error = sc_clean_up(scp))) {
680 		splx(s);
681 		return error;
682 	    }
683 #ifndef PC98
684 	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
685 	    splx(s);
686 	    /* no restore fonts & palette */
687 	    if (scp == scp->sc->cur_scp)
688 		set_mode(scp);
689 	    sc_clear_screen(scp);
690 	    scp->status &= ~UNKNOWN_MODE;
691 #else /* PC98 */
692 	    scp->status &= ~UNKNOWN_MODE;
693 	    /* no restore fonts & palette */
694 	    if (scp == scp->sc->cur_scp)
695 		set_mode(scp);
696 	    sc_clear_screen(scp);
697 	    splx(s);
698 #endif /* PC98 */
699 	    return 0;
700 
701 #ifdef SC_PIXEL_MODE
702 	case KD_PIXEL:		/* pixel (raster) display */
703 	    if (!(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
704 		return EINVAL;
705 	    if (scp->status & GRAPHICS_MODE)
706 		return sc_set_pixel_mode(scp, tp, scp->xsize, scp->ysize,
707 					 scp->font_size);
708 	    s = spltty();
709 	    if ((error = sc_clean_up(scp))) {
710 		splx(s);
711 		return error;
712 	    }
713 	    scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
714 	    splx(s);
715 	    if (scp == scp->sc->cur_scp) {
716 		set_mode(scp);
717 #ifndef SC_NO_PALETTE_LOADING
718 		load_palette(adp, scp->sc->palette);
719 #endif
720 	    }
721 	    sc_clear_screen(scp);
722 	    scp->status &= ~UNKNOWN_MODE;
723 	    return 0;
724 #endif /* SC_PIXEL_MODE */
725 
726 	case KD_GRAPHICS:	/* switch to GRAPHICS (unknown) mode */
727 	    s = spltty();
728 	    if ((error = sc_clean_up(scp))) {
729 		splx(s);
730 		return error;
731 	    }
732 	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
733 	    splx(s);
734 #ifdef PC98
735 	    if (scp == scp->sc->cur_scp)
736 		set_mode(scp);
737 #endif
738 	    return 0;
739 
740 	default:
741 	    return EINVAL;
742 	}
743 	/* NOT REACHED */
744 
745 #ifdef SC_PIXEL_MODE
746     case KDRASTER:		/* set pixel (raster) display mode */
747 	if (ISUNKNOWNSC(scp) || ISTEXTSC(scp))
748 	    return ENODEV;
749 	return sc_set_pixel_mode(scp, tp, ((int *)data)[0], ((int *)data)[1],
750 				 ((int *)data)[2]);
751 #endif /* SC_PIXEL_MODE */
752 
753     case KDGETMODE:     	/* get current mode of this (virtual) console */
754 	/*
755 	 * From the user program's point of view, KD_PIXEL is the same
756 	 * as KD_TEXT...
757 	 */
758 	*data = ISGRAPHSC(scp) ? KD_GRAPHICS : KD_TEXT;
759 	return 0;
760 
761     case KDSBORDER:     	/* set border color of this (virtual) console */
762 	scp->border = *data;
763 	if (scp == scp->sc->cur_scp)
764 	    sc_set_border(scp, scp->border);
765 	return 0;
766     }
767 
768     return ENOIOCTL;
769 }
770 
771 static LIST_HEAD(, sc_renderer) sc_rndr_list =
772 	LIST_HEAD_INITIALIZER(sc_rndr_list);
773 
774 int
775 sc_render_add(sc_renderer_t *rndr)
776 {
777 	LIST_INSERT_HEAD(&sc_rndr_list, rndr, link);
778 	return 0;
779 }
780 
781 int
782 sc_render_remove(sc_renderer_t *rndr)
783 {
784 	/*
785 	LIST_REMOVE(rndr, link);
786 	*/
787 	return EBUSY;	/* XXX */
788 }
789 
790 sc_rndr_sw_t
791 *sc_render_match(scr_stat *scp, char *name, int mode)
792 {
793 	const sc_renderer_t **list;
794 	const sc_renderer_t *p;
795 
796 	if (!LIST_EMPTY(&sc_rndr_list)) {
797 		LIST_FOREACH(p, &sc_rndr_list, link) {
798 			if ((strcmp(p->name, name) == 0)
799 				&& (mode == p->mode)) {
800 				scp->status &=
801 				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
802 				return p->rndrsw;
803 			}
804 		}
805 	} else {
806 		list = (const sc_renderer_t **)scrndr_set.ls_items;
807 		while ((p = *list++) != NULL) {
808 			if ((strcmp(p->name, name) == 0)
809 				&& (mode == p->mode)) {
810 				scp->status &=
811 				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
812 				return p->rndrsw;
813 			}
814 		}
815 	}
816 
817 	return NULL;
818 }
819